U.S. Marine Gunnery Sgt. Carlos Aguilera, a platoon

U.S. Marine Gunnery Sgt. Carlos Aguilera, a platoon sergeant with Echo Company, 1st Light Armored Battalion, and 31-year-old native of Los Angeles, performs pull-ups on a makeshift bar during an overnight post here, April 26, 2012. Due to the high operational tempo required of Echo Co., Aguilera and his Marines have spent nearly their entire deployment on the road. After a rigorous day of patrolling or holding a vehicle checkpoint, the Echo Marines utilize their mobile gym to maintain the Marine Corps standard of fitness.